PTC METROLOGY™ is accredited to ISO 17025 by A2LA
PTC Metrology™ is the calibration laboratory of PTC® Instruments, the world's leading manufacturer of durometers and bimetal surface thermometers. PTC® has been performing calibrations for more than 60 years. John Marcus, Ph.D. is the Technical Director. He brings his training in experimental physics and thermodynamics to bear directly on PTC Metrology™, keeping it technically competent and up to date. Our certificate from A2LA covers calibration and written certification for the following.